12447643523377 has 16 divisors (see below), whose sum is σ = 13176862871040. Its totient is φ = 11738445933312.

The previous prime is 12447643523369. The next prime is 12447643523461. The reversal of 12447643523377 is 77332534674421.

12447643523377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12447643523377 - 2³ = 12447643523369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12447643523327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33154368 + ... + 33527710.

It is an arithmetic number, because the mean of its divisors is an integer number (823553929440).

Almost surely, 2^{12447643523377} is an apocalyptic number.

It is an amenable number.

12447643523377 is a deficient number, since it is larger than the sum of its proper divisors (729219347663).

12447643523377 is a wasteful number, since it uses less digits than its factorization.

12447643523377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400152.

The product of its digits is 71124480, while the sum is 58.

The spelling of 12447643523377 in words is "twelve trillion, four hundred forty-seven billion, six hundred forty-three million, five hundred twenty-three thousand, three hundred seventy-seven".